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BEYMA 18LEX1200Fe

BEYMA 18LEX1200Fe

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BEYMA 18LEX1200Fe — 18" / 18 inch · Woofer · Subwoofer / Bass · Ferrite Magnet
1200 W AES - 97 dB - 40 – 1000 Hz - 8 Ω
Part no.: 42A-CHS-TT-BEY-0010

315.00 € 315.0 EUR 315.00 €

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  • Manufacturer
  • Category
  • Series
  • Magnet
  • Impedance (Ω)
  • Power handling (W)
  • Sensitivity (dB)
  • Frequency from (Hz)
  • Frequency to (Hz)
  • Diameter
  • Voice coil (inch)
  • Mounting depth (mm)
  • Weight (kg)
  • Re (Ω)
  • Le (mH)
  • Fs (Hz)
  • Qms
  • Qes
  • Qts
  • Vas (l)
  • Xmax (mm)
  • Vd (cm³)
  • BL (Tm)
  • Mms (kg)

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BEYMA 18LEX1200Fe — 18" · Woofer · Ferrite-Magnet

1200 W AES · 97 dB Sensitivity · Frequency range 40 Hz – 1000 Hz

Technical data

  • Diameter: 18 "
  • Voice coil: 4 "
  • Power handling: 1200 W AES
  • Sensitivity: 97 dB
  • Impedance: 8 Ω
  • Magnet: Ferrite
  • Weight: 14 kg
  • Mounting depth: 225 mm
  • Frequency range: 40 – 1000 Hz

Series: LEX · Part no.: 42A-CHS-TT-BEY-0010

Thiele-Small parameters

Nominal impedance8 Ω
Resonance frequency fs32 Hz
Total Q Qts0.38
Electrical Q Qes0.39
Mechanical Q Qms12.2
Equivalent volume Vas277.0 l
Moving mass Mms200.0 g
Linear excursion Xmax11 mm
Verschiebevolumen Vd1 cm³
Force factor BL23.2 Tm
DC resistance Re5.3 Ω
Voice coil inductance Le1.21 mH

Enclosure suggestion

The EBP of 82 is in the intermediate range — either works; sealed plays tighter, bass reflex deeper and louder. EBP = fs / Qes = 32 / 0.39

Sealed (Qtc 0.707)

Enclosure volume Vb
112.5 l
System resonance Fc
60 Hz
Cut-off frequency F3
60 Hz

Bass reflex (QB3 after Small)

Enclosure volume Vb
227.4 l
Tuning frequency Fb
34 Hz
Cut-off frequency F3
35 Hz

Vb is the required net internal volume, Fb the tuning frequency of the reflex port and F3 the frequency at which the level has dropped by 3 dB. Calculated approximation after Small. A starting point for simulation, not a finished build plan.

Comparable drivers

Same size, same type, Qts within ±30 %.

Specifications

Allgemein
Manufacturer BEYMA
Category Low Frequency
Series LEX
Magnet Ferrite
Impedance (Ω) 8
Power handling (W) 1200
Sensitivity (dB) 97
Frequency from (Hz) 40
Frequency to (Hz) 1000
Abmessungen & Korb
Diameter 18
Voice coil (inch) 4
Mounting depth (mm) 225
Weight (kg) 14
Thiele-Small-Parameter
Re (Ω) 5.3
Le (mH) 1.21
Fs (Hz) 32
Qms 12.2
Qes 0.39
Qts 0.38
Vas (l) 277
Xmax (mm) 11
Vd (cm³) 1.3
BL (Tm) 23.2
Mms (kg) 0.2